FR2785748B1 - Synchronisation dans un systeme de telecommunications en acces multiple a division par codes - Google Patents
Synchronisation dans un systeme de telecommunications en acces multiple a division par codesInfo
- Publication number
- FR2785748B1 FR2785748B1 FR9814053A FR9814053A FR2785748B1 FR 2785748 B1 FR2785748 B1 FR 2785748B1 FR 9814053 A FR9814053 A FR 9814053A FR 9814053 A FR9814053 A FR 9814053A FR 2785748 B1 FR2785748 B1 FR 2785748B1
- Authority
- FR
- France
- Prior art keywords
- synchronization
- multiple access
- division multiple
- telecommunications system
- access telecommunications
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
- H04J13/18—Allocation of orthogonal codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/70735—Code identification
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/06—Speed or phase control by synchronisation signals the synchronisation signals differing from the information signals in amplitude, polarity or frequency or length
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9814053A FR2785748B1 (fr) | 1998-11-09 | 1998-11-09 | Synchronisation dans un systeme de telecommunications en acces multiple a division par codes |
EP99402680A EP1001560A1 (fr) | 1998-11-09 | 1999-10-28 | Synchronisation dans un système de télécommunications en acces multiple à division par codes |
TW088118844A TW437197B (en) | 1998-11-09 | 1999-10-29 | Synchronization in a multiple access code division telecommunications system |
JP11316331A JP2000286913A (ja) | 1998-11-09 | 1999-11-08 | 符号分割多重アクセス通信システムにおける同期 |
KR1019990049353A KR20000035311A (ko) | 1998-11-09 | 1999-11-09 | 코드 분할 다중 접속 원거리 통신 시스템에서의 동기화 |
AU58385/99A AU5838599A (en) | 1998-11-09 | 1999-11-09 | Synchronization in a multiple access code division telecommunications system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9814053A FR2785748B1 (fr) | 1998-11-09 | 1998-11-09 | Synchronisation dans un systeme de telecommunications en acces multiple a division par codes |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2785748A1 FR2785748A1 (fr) | 2000-05-12 |
FR2785748B1 true FR2785748B1 (fr) | 2000-12-15 |
Family
ID=9532513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9814053A Expired - Fee Related FR2785748B1 (fr) | 1998-11-09 | 1998-11-09 | Synchronisation dans un systeme de telecommunications en acces multiple a division par codes |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1001560A1 (zh) |
JP (1) | JP2000286913A (zh) |
KR (1) | KR20000035311A (zh) |
AU (1) | AU5838599A (zh) |
FR (1) | FR2785748B1 (zh) |
TW (1) | TW437197B (zh) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4599732A (en) * | 1984-04-17 | 1986-07-08 | Harris Corporation | Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format |
SE502656C2 (sv) * | 1994-11-29 | 1995-12-04 | Telia Ab | Metod för synkronisering av sändare och mottagare vid mobilt radiosystem |
US5825835A (en) * | 1996-02-23 | 1998-10-20 | L-3 Communications Corporation | Multi-user acquisition procedure for multipoint-to-point synchronous CDMA systems |
-
1998
- 1998-11-09 FR FR9814053A patent/FR2785748B1/fr not_active Expired - Fee Related
-
1999
- 1999-10-28 EP EP99402680A patent/EP1001560A1/fr not_active Withdrawn
- 1999-10-29 TW TW088118844A patent/TW437197B/zh not_active IP Right Cessation
- 1999-11-08 JP JP11316331A patent/JP2000286913A/ja active Pending
- 1999-11-09 AU AU58385/99A patent/AU5838599A/en not_active Abandoned
- 1999-11-09 KR KR1019990049353A patent/KR20000035311A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU5838599A (en) | 2000-05-11 |
JP2000286913A (ja) | 2000-10-13 |
EP1001560A1 (fr) | 2000-05-17 |
TW437197B (en) | 2001-05-28 |
FR2785748A1 (fr) | 2000-05-12 |
KR20000035311A (ko) | 2000-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |